Abstract:Based on the patent data of the charging pile technology, this paper uses the Logistic model to predict the life cycle of the charging pile technology, and uses IPC classification to carry out key technical analysis. The results show that: the domestic charging pile technology entered the growth period in 2015 and entered the maturity period in 2020. It will enter the recession period in 2025; and the foreign charging pile technology entered the growth period in 2007, entered the maturity period in 2017, and is expected to enter the recession period in 2030. In addition, domestic and foreign charging pile technology companies pay more attention to the layout in the two technical fields of B60L and H02J. Compared with foreign countries, domestic companies have weak patent layouts in natural energy conversion, wireless power supply, and safe power consumption devices.